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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
    </div>
    <h2>导航内容</h2>
    <ul>
        <li>导航li1</li>
        <li>导航li2</li>
        <li>导航li3</li>
        <li>导航li4</li>
        <li>导航li5</li>
    </ul>
</body>

</html>